I'm using fdisk and cfdisk that come with the Slackware 13.37 installation DVD (64 bit), to partition a new 640GB hard drive. The hard drive is in a laptop which had Win7 on it but never booted or set up that OS. This is my first time using fdisk/cfdisk to partition a drive.
I used cfdisk, which created my partitions. When I then run "fdisk -l" to double-check, this is what I get:
Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 byes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xd8d86525
Device Boot Start End Blocks Id System
/dev/sda1 * 63 96389 48163+ 83 Linux
Partition 1 does not start on physical sector boundary.
/dev/sda2 96390 594404 249007+ 82 Linux Swap
Partition 2 does not start on physical sector boundary.
/dev/sda3 594405 40596254 20000925 83 Linux
Partition 3 does not start on physical sector boundary.
/dev/sda4 40596255 1250263727 604833736+ 83 Linux
Partition 4 does not start on physical sector boundary.
So question 1 is: Is this "not starting on physical sector boundary" stuff a problem, and if so, how do I fix it?
Question 2 is: Every tutorial I've seen for fdisk has /dev/sda1 starting at sector 1. Is starting at 63 OK? (Though my desktop has /dev/sda1 at 63 and it works fine.)
(Question 2b is: When I tried to use fdisk to create the partitions, it wouldn't create /dev/sda1 any lower than 2048. Why would that be?)
When I run "fdisk /dev/sda", I get:
The device presents a logical sector size that is smaller than the physical sector size. Aligning to a physical sector (or optimal I/O) size boundary is recommended, or performance may be impacted.
Question 3 is: How do I do this recommended alignment?